TREA

Yukihiro Iha

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  • Yokkaichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of stabilizing polyoxymethylene copolymer
    • Patent number 4,814,424
    • Issue date Mar 21, 1989
    • Mitsubishi Gas Chemical Company, Inc.
    • Takeo Suzumori
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing oxymethylene copolyer
    • Patent number 4,681,927
    • Issue date Jul 21, 1987
    • Mitsubishi Gas Chemical Company, Inc.
    • Toshikazu Umemura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...